Heating soldering-irons



(No Model.)

' F. S. ROBNSON.

HEATING SOLDERING. IRONS.

Patentedfeb. 10,..1891.

. l UNITED STATES PATENT OFFICE.

FAYETTE S. ROBINSON, OF BOSTON, MASSACHUSETTS.

HEATING SOLDERING-IRONS.

' SPECIFICATION forming part of Letters Patent No. 446,154, dated February 10, 1891.

Application filed .Iuly 25, 1890. Serial No. 359,871. (No model.)

To all whom, it may concern;

Be it known that I, FAYETTE S. ROBINSON, a citizen ot the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements ilr Apparatus for Heating Soldering-Irons; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.

This invention relates to soldering apparatus by means of which the iron, so termed, is heated by the flame of a lamp or a gas-jet.

My invention relates to that class particularly described in United States Letters Patent No. 200,875, issued in my name the 5th day of March, 1878, and may be considered as embodying improvements thereon, all of which will be fully hereinafter described.

The drawings accompanying this specification represent, inFigure 1, a verticallongitudinal section of a soldering apparatus embodying my invention. Fig. 2 is atransverse section of the apparatus with a soldering-iron, showing the position of the iron and the action of the flame thereupon. Fig. 3 is a plan with the top portion removed.

Briefly described, my soldering apparatus consists of a base or lamp 2, to which is secured by hinged connection a rectangular flue or chimney 3, made preferably of sheet metal. Vertically adjustable upon one end and interiorly thereof is aholder-plate 4, having a circular aperture 5, provided with an annular rim orshort tubular sleeve 15, through which the soldering-iron 6 is admitted within the flue. This plate 4 closes an opening cut in this end ofthe flue, and is adjustable t-o regulate the height at which the solderingiron is to be held above the flame.

The soldering-iron is of the usual construction, and is fitted with a movable collar 7, which engages within the sleeve l5, While a flange 16 limits the distance it can enter within the flue. By adjusting the collar upon the handle of the iron the latter may enter the flue a greater or less distance.

The primary object of my invention consists in an improvement in the burner or manner in which the heat is applied to the soldering-iron Without permitting direct contact of the flame against said iron, the result of which is frequently to burn or smoke and blacken the said iron.

In my apparatus I propose to employ two flames fed by Wicks 8 8, (see Fig. 3,) of a Width, as shown in Fig. l, equal to or greater than the length of the iron. In connection with the double-llame burner I employ a cone 9 with a single central aperture 10,1ongitudinally of the flue and parallel with the Wicks, but above and preferably centrally between them. In alignment with this aperture or flame-orificeand adj ustably above it is placed the iron in process .of heating.

It is obvious from the direction of the various arrows designating the air and flame currents that when the Wicks are lighted the flame produced jointly thereby impinges against the inner surface of the cone adjacent to the edge of the aperture 10. In conjunction With said double Wicks and the flames therefrom a strong current of air upwardly is produced between the Wicks and is concentrated at said aperture. Furthermore, this air-current passes between said flames through the aperture 10, strikes the under side of the iron and divides, passing about the latter on either side. By the action of this central air-draft each flame is forced about the edge of the aperture and spreads outwardly upon emerging from the cone. In this Way the direct impact of the flame or flames against the iron is prevented, While the central air, highly heated by the flame, conjointly with the latter, serves to raise the iron to the proper temperature without danger of burning or smoking the iron.

By reference to Figs. 1 and 2 the oil-reservoir will be seen indicated at 17, while the Wick-tubes 18 18 are shown to extend some distance below. The oil-reservoir and wicktubes 18 are connected by feed ducts or passages 19 at the edges of said Wick-tubes. (See Fig. 3.) By this construction the air-passages from beneath are unobstructed. These are three in number-a central one 2O between the wicks and two side ones 21 23- which conveyair over the wick-tubes, and thus keep them cool.

ICO

In lieu of uniting the wick-tubes with the oil-reservoir, as shown, openings maybe made their effect yupon the Haine are clearly shown but to increase their resultant effect and confine the heat as it passes upward more closely about the iron I have applied two deflectorplates 25 to the sides of the Hue. Said plates arey positioned, as shown, slanting upwardly and obliquely toward the iron and in this way compelling the heat to approach the iron. In this way more efficient results are obtained.

lVhat I claim isl. Ina soldering-iron heater, the combination, rwith the lamp-base and chimney-Hue having means for supporting a soldering-iron, of the cone having the single-flame aperture and wickftubes arranged below said cone out of line vertically with said aperture and on opposite sides thereof, substantially as and for the purposes set forth.

. 2. -In a soldering-iron heater, the combination, with the chimney-flue provided with the vertically-adjustable solderingfiron holder, of the metallic cone having the single'iame aperture, and the wick-tubes arranged below said cone out of line vertically with said aperture and on opposite sides thereof, substantially as and for the purposes set forth.

3. Alamp-base, the chimney-due provided with a soldering-iron holder, the oil-reservoir having a central chamber, and the wick-tubes extending vertically therethrough and dividing it into air-ues, combinedwith oil-ducts leading from the reservoir to thesaid wicktubes, and a directing-cone having a singleiame aperture centrally located with respect to thesaid wick-tubes, the latter being below said cone but out of line vertically with said aperture, substantially as described.

4. In a soldering-iron heater, the combination, with alamp-base and a chimney-Hue having means for holdinga soldering-iron, of a heat directing cone having a single-dame aperture, inclined deflectors 25, arranged above said aperture `within the flue, and wick-tubes arranged below said aperture but out of line vertically therewith,V substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

` l FAYETTE S. ROBINSON. Vitnesses:

H. E. LODGE, WILLIAM FOSTER. 

